   #PHP Manual URL Functions base64_decode get_meta_tags

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                                 base64_encode

   (PHP 3, PHP 4 )
   base64_encode -- Encodes data with MIME base64

Description

   string base64_encode ( string data)

   base64_encode() returns data encoded with base64. This encoding is
   designed to make binary data survive transport through transport
   layers that are not 8-bit clean, such as mail bodies.

   Base64-encoded data takes about 33% more space than the original data.

   Example 1. base64_encode() example
   <?php
     $str = 'This is an encoded string';
     echo base64_encode($str);
   ?>

   This example will produce :
   VGhpcyBpcyBhbiBlbmNvZGVkIHN0cmluZw==

   See also base64_decode(), chunk_split() and RFC 2045 section 6.8.
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